Power charging device for concrete-mixers.



APPLICATION FILED NOV. 18.1908

Patented N (W. 9, 1909.

WITH/E8858:

UNITED -sivirns. PATENT oFFics.

ALBERT E. SMITH, or M LWAUKEE, wisooNsIN, ASSIGNOR TO THE T. L. SMITH0011- PANY, or MILWAUKEE, wIscoNsIN, A CORPORATION or wIscoNsIN.

POWER-CHARGING ImvIcE 1m coN'cRETE-MIxnR-s.

To all whom it 'rria'y'concern: I

Be it known that I, Annular E. SMITH, a

State of Wisconsin, have invented a new and useful Power Charging Devicefor C011 (mete-Mixers, of which the following is a description,reference being had to the ate'ompanying drawings, which form part ofthis specification.

- My invention relates to a power charging device for concrete mixers ofthat class termed batch mixers,- in which, a definite batch of theingredients to be mixed is putin the mixing machinewhere it is mixed anddischarged therefrom-before another batch is introduced; and the objectsof my invention are to provide a durable dev1ce, comparatively simplelDJCODSiZIftlChlOIl, with very 'little overhang over theside of, the

truck, and lastly one in which the hoisting rope has a fair leadand-does notpull at lisadv'antageous angles to the support-s and theload. I attain these obj ects by the mechanismillustrated intheaccompanying drawing, in which, I v Figure 1 is an end view of a mixingmachine with the power loading-1 device atta'ched, the loading bucketbeing shown in full lines in its lower position, and 'in dotted lines inits ,elevatedposition -'Fig. 2 is a view of the machine-as seen bylooking at Fig. 1 from the right-hand side thereof.

Similar letters refer vto similar parts throughout the different viewsof the draw-- in n.

a I I u o I A concrete mixer is shown in the drawlng mixer may be used,it Willxbe sufficient description to say that A is a cylindrical drum ofa non-tilting mixer.

B 13 are roller tracks engaged by the rollers C C, by' which the drum issupported. The frame D affords journal bearingsfor the rollers, and isalso utilized for attaching the charging device. p E E are the tracktimbers, F one of the axles and F one of the truck wheels on which the.entire machine istransportable.

The charging bucket G is provided'wit-h a long spout G which ispivotedto the frame H in front of the feed opening of'the drum II. by means ofthe shaft 7r attached to-the frame H and the box or bearing'h attachedAs any concretese iai'no. 463,205.

Specificat ionof Letters Patent; Patented NOV.'9, 1 909. Applicationfiled November 18, 1908.

to the spoutG'," The frame H is secured to the frame D by bolts at thepoint It". The lower partsof the-frame H are vertical but the upperpartsmay be bent toward each other, and at. their junction they supportan inclined shaft K carrying the inclined sheave Z. left side of themixer by, means of the rods in, connected to the upper corners of twoframes consisting of uprights m," and struts 972"."

The boom I is-pivoted to the frame H by means of the castin' s L- andpivot pins passing therethrough. he two upper portions of the boom-members are bent toward eacli'other and at the upper end support thesheave nwhich runs loose on its shaft. The hoomI is attached to theframe H by thelinks 00 which have .a pin and slot engagement with eachother.' These links limit the outward-swingeof the boom I and as theboomswings in toward the frame H the links fold downward. The sheave p isconnected to the bucket G as shown, and the guide-sheave g is attachedto the frame H by the bracket g. 7

Any kind of hoisting apparatus maybe used, R being the drum. Thehoisting r0 e is attached to the boom I by means of'tie' The frame H istied tothe VVhile' the bubket-G is being elevated,'thefl. boom will. atfirst remain in its extended or outward position', on account of therope being'attached' thereto at p. When thespout G strikes the bar 1 theboom commences-to swing toward the frame H and finally they bucket andboom arebrought to the position shown in dotted lines in Fig. 1.

While the drawing shows the sheave Z on; the right handside of themixer, I-consider .it withinthe scope of my invention to place thissheave and the extensions of the frame. 1

above the cross bar m on the other side of 0 the machine. Also theshaftof the hoisting device maybe-placed crosswise of the machineparallel to the axles of thetruck,

' ..What-I claim as my invention, and desire to secure l y LettersPatent, is-v 1. A power charging device for concrete mixers, comprisinga framework extending upward fromthe mixer .frame', a loading frameworkwithit-snose in position to enter the mixer drum, while the bucket isresting bucket having a long spout pivoted to said onthe ground, aswinging boom hinged to said framework, means limiting the outward swingof said boorma hoisting device on the mixer, sheaves on the budget andon the up per ends of the boom and. frame, a hoisting rope connected tothe boom near its upper end, leading under the sheave on the bucket,

' over the two upper sheaves and thence to the hoisting device.

2. A power charging device for concrete mixers, comprising a frame onthe mixer, a boomhinged on the frame, a bucket with a long spout hingedto the frame, a hoisting device and a hoisting rope attached to theupper end of the boom and passing under a sheave on the bucket, oversheaves on the up per partpf the boom and the frame, and to the hoistingdevice.

3. A power charging device for concrete mixers, comprising a loading.bucket, a hinged or swinging boom, a hoisting device, a frame Work onthe mixer, and a rope attached to the upper end of the boom, leadingaround sheaves on the bucket, the upper part ofthe boom and of the f ameto the hoisting device.

i. In a power charging device. for concrete mixers, a boom hinged at itslower end, means limiting the outward swing of the boom, a loadingbucket provided With a-' sheave, means guiding the discharge end of thebucket and a hoisting rope attached to the boom and leading around thesheave on the bucket and over a sheave on the boom.

ALBERT E. SMITH. Witnesses E. W. BRACKENBURY, H. H. GERLACl-I.

